产品名称：BLACK BOX ACU6222A 
型号：ACU6222A                 
品牌：BLACK BOX

描述：
 Extends USB and VGA signals over CATx cable up to 1000 feet (300 m).
Supports high-resolution video: 1600 x 1200 at 60 Hz over 650 feet (200 m) 
or 1280 x 1024 at 75 Hz over 1000 feet (300 m).
规格：
Includes serial and bidirectional stereo audio (16-bit digitized) support.
Dual-head VGA support for two monitors at the local unit.
Fully integrated skew compensation cancels color shift and enhances image 
sharpness.
Status indicator LEDs on each RJ-45 port.
Surge protection on each CATx port and power supply unit overvoltage 
detection.
Rackmount kit .
Also  in a standard model and with single-head VGA.